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Phone Directory 301-503 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 503-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-503 Bethesda, MD New Cingular Wireless PCS - DC Montgomery Cell Number 02/04/1994

Other Series For Prefixes

301-5030###
301-5031###
301-5032###
301-5033###
301-5034###
301-5035###
301-5036###
301-5037###
301-5038###
301-5039###